Oil & Gas Offshore Drilling rig in ocean

Pexofoam X339

Defoamer for water-based drilling fluids

Chemistry Type: Silicone emulsion

Function(s): Drilling Fluid Additives

Pexofoam X339 liquid defoamer provides excellent, cost-effective foam control and suppression in all water-based fluid systems. Being compatible with high salt concentrations, it is ideal for seawater and salt-contaminated muds that show a high tendency of foam formation. Its high shear stability enables long lasting performance in circulated drilling fluid systems.

Key Advantages

  • Long-lasting defoaming action after initial treatment
  • Immediate action upon application
  • Tolerates extreme pH, acidic and alkaline
  • Highly cost-efficient; effective at low dosages by synergistic action of different active components
  • Hydrocarbon-free, non-hazardous and non-regulated; no flash point
  • Temperature-stable up to 176 °C (350 °F)
Physical Form
Specific Gravity
Solids (by weight)
10 %
Active Ingredient (by weight)
100 %
6.5 - 7.5
Ionic Character

Product Availability

Asia (excl. China, incl. India), China, EMEA (Europe, Middle East, Africa), Latin America, North America, South Pacific

Contact Us for individual country availability.

Related Documents & Downloads

OMNOVA Chemical Technical Data Sheet
OMNOVA Chemical Regulatory Data Sheet
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